A negative charge q_1 is moving with a constant velocity vector v in a region wh

Question

A negative charge q_1 is moving with a constant velocity vector v in a region where both a uniform electric field vector E and uniform magnetic field vector B exist. Of the three vectors vector v, vector E, and vector B, which pair(s) must be perpendicular (There may be more than one correct answer.) vector E and vector v vector v and vector B vector B and vector E None All three must be perpendicular. The negative charge is replaced with another charge q_2 moving initially with the same velocity. Under what conditions will the second charge also move with constant velocity q_2 must be identical to q_1. q_2 must be negative, but can.have any magnitude. q_2 can be positive, but must have the same magnitude as q_1. q_2 can be any charge.

Explanation / Answer

Answer number one.

Option A can be taken as correct as changing a particle with certain load and replace it with the same charge, when placed in the same electric and magnetic field will continue with the same speed.

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